With the end of the year approaching and Boxing's Best airing, it's as good a time as any to take a look back at a stacked year of fights on HBO. HBO Boxing Insiders made their selections for the top everything from this year's HBO fights. Next up, KO of the Year.

Adonis Stevenson's annihilation of Chad Dawson and the cold-eyed destruction of Ismayl Sillakh by Sergey Kovalev are high on the list, but Golovkin's one-punch body shot stoppage of Macklin was the kind of performance that burns itself into the memory. Macklin, a quality contender who had pushed Sergio Martinez to the brink, looked confident before the fight, deeply concerned after taking his opponent's first couple of punches, and broken in half after Golovkin dropped him with a shot that cracked his rib and kept him on the canvas for several minutes. It was an emphatic end to a powerfully dominant performance from the Kazakh-born sensation -- one that announced he is a true force to be reckoned with in the middleweight division.

Eric Raskin: Gennady Golovkin KO3 Matthew Macklin

Because I didn't care for the way in which Stevenson-Dawson was stopped -- the ref never asked Dawson to step forward and called what struck me as a slightly panicky halt in a fight of that magnitude -- I have to pick GGG's bodyshot blastout of Macklin. This wasn't like Bernard Hopkins' bodyshot stoppage of Oscar De La Hoya, which did the job but didn't look like much. Golovkin's left hook to Macklin's middle packed all the aesthetic punch you could ask for. You could almost feel Macklin's pain from your living room couch -- especially when he was still struggling for breath as Michael Buffer announced the result a couple of minutes later.

Nat Gottlieb: Adonis Stevenson KO1 Chad Dawson

Complete shocker as Dawson, despite his loss at 168 to Ward, was still considered the man at 175. Adonis took over The Man status in short order with a brutal left cross that nearly lifted Dawson off his feet and sent him down flat on his back. Dawson bravely got up to beat the count, but the ref took one look at the fighter, who probably didn't know where he even was, and waved it off.

Tim Smith: Mikey Garcia KO8 Roman Martinez

There is nothing quite like a perfectly executed left hook to the liver to bring matters in the ring to a quick and decisive conclusion. And that is exactly what Mikey Garcia did when he landed that perfect KO shot on Roman "Rocky'' Martinez at 56 seconds of the eighth round of their WBO super featherweight match. When Garcia landed the shot, Martinez was frozen like a block of ice from its paralyzing effect. The victory solidified Garcia's credentials a legitimate star.

Hamilton: Adonis Stevenson KO1 Chad Dawson

Adonis Stevenson knocking out Chad Dawson in the first round. This was the single most emphatic "Hello, goodbye" moment of the year in boxing. A changing of the guard.

Michael Gluckstadt: Adonis Stevenson KO1 Chad Dawson

There was no KO more emphatic or dramatic than Adonis Stevenson proving out Emmanuel Steward's prediction that he would be the number one fighter at light heavyweight, and doing so in the first round.